171225883760377 has 2 divisors, whose sum is σ = 171225883760378. Its totient is φ = 171225883760376.

The previous prime is 171225883760341. The next prime is 171225883760381. The reversal of 171225883760377 is 773067388522171.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119840728058041 + 51385155702336 = 10947179^2 + 7168344^2 .

It is an emirp because it is prime and its reverse (773067388522171) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 171225883760377 - 2¹¹ = 171225883758329 is a prime.

It is not a weakly prime, because it can be changed into another prime (171225883760317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85612941880188 + 85612941880189.

It is an arithmetic number, because the mean of its divisors is an integer number (85612941880189).

Almost surely, 2^{171225883760377} is an apocalyptic number.

It is an amenable number.

171225883760377 is a deficient number, since it is larger than the sum of its proper divisors (1).

171225883760377 is an equidigital number, since it uses as much as digits as its factorization.

171225883760377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165957120, while the sum is 67.

The spelling of 171225883760377 in words is "one hundred seventy-one trillion, two hundred twenty-five billion, eight hundred eighty-three million, seven hundred sixty thousand, three hundred seventy-seven".